Question

Factorie the following. x^2-x-20

Answer 1

x^2-x-20
= x^2-5x+4x-20
=x(x-5)+4(x-5)
= (x+4) (x-5) ans.....
Hope it will help you

Answer 2

$= {x}^{2} - x - 20 \\ = {x}^{2} - 5x + 4x - 20 \\ = x(x - 5) + 4(x - 5) \\ = (x - 5)(x + 4) \\ = x = 5 \: or \: - 4$
hope it helps u ^-^